SATA 3.0 port&IDE mode: Cannot Detect DVD Drive
I meet a problem in Ubuntu 10.10(Marevrick). This problem exists on Ubuntu 11.4(Natty), too.
Ubuntu can't detected DVD drive when I plug a DVD drive to SATA 3.0 port and set SATA controlloer to IDE mode.
If I plug the DVD drive to SATA 2.0 port and set SATA controlloer to IDE mode, the DVD drive can be detected.
If I plug the DVD drive to SATA 3.0 port and set SATA controlloer to AHCI mode, the DVD drive can be detected, too.
If I use the setting to install Ubuntu, I will get the message 'no common cd-rom drive was detecte'.
I use live usb to collect some logs. Of course, When I ues live usb, the DVD drive can't be detected, too.
I use the same setting to install RHEL 6.0 and it works fine. This bug doesn't exist in RHEL6.0
Any ideas to fix it?